ICD-10 · PDGM grouping
K28 Gastrojejunal ulcer
All 9 codes in the K28 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
9
Can lead a claim
9
Cannot lead a claim
0
What CMS assigns to K28
All 9 codes group to MMTA - Gastrointestinal tract and Genitourinary system (7) and MMTA - Other (2). None of the 9 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in K28
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| K28.0 | Acute gastrojejunal ulcer with hemorrhage | Can lead a claim | J | None |
| K28.1 | Acute gastrojejunal ulcer with perforation | Can lead a claim | J | None |
| K28.2 | Acute gastrojejunal ulcer with both hemorrhage and perforationCMS: Acute gastrojejunal ulcer w both hemorrhage and perforation | Can lead a claim | A | None |
| K28.3 | Acute gastrojejunal ulcer without hemorrhage or perforation | Can lead a claim | J | None |
| K28.4 | Chronic or unspecified gastrojejunal ulcer with hemorrhage | Can lead a claim | J | None |
| K28.5 | Chronic or unspecified gastrojejunal ulcer with perforation | Can lead a claim | J | None |
| K28.6 | Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforationCMS: Chronic or unsp gastrojejunal ulcer w both hemor and perf | Can lead a claim | A | None |
| K28.7 | Chronic gastrojejunal ulcer without hemorrhage or perforationCMS: Chronic gastrojejunal ulcer w/o hemorrhage or perforation | Can lead a claim | J | None |
| K28.9 | Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforationCMS: Gastrojejunal ulcer, unsp as acute or chr, w/o hemor or perf | Can lead a claim | J | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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